Diagnostic protocol designed to evaluate if if sleep apnea syndrome is more frequent in type 1 diabetes than in general population and therefore deserves to be more systematically suspected and actively diagnosed in this patients. Sleep apnea syndrome is a heavy burden as a matter of quality of life: it is responsible for fatigue, diurnal sleepiness, cognitive impairment, poor and /or non restorative sleep, morning headaches, depressive mood…Adequate treatment provides a rapid and, most of the time, complete relief of these symptoms.